Low-Cost Air Quality Measurement System Based on Electrochemical and PM Sensors with Cloud Connection.

ABSTRACT: This paper presents a portable device for outdoor air quality measurement that provides concentration values for the main pollutants: NO₂, NO, CO, O₃, PM_2.5 and PM₁₀, and other values such as temperature, humidity, location, and date. The device is based on the use of commercial electrochemical gas and optical particle matter sensors with a careful design of the electronics for reducing the electrical noise and increasing the accuracy of the measurements. The result is a low-cost system with IoT technology that connects to the Internet through a GSM module and sends all real-time data to a cloud platform with storage and computational potential. Two identical devices were fabricated and installed on a mobile reference measurement unit and deploye

SUBMITTER: Arroyo P 

PROVIDER: S-EPMC8472764 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature